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Math  /  Data & Statistics

QuestionQuestion 15 of 20
Find the critical value and rejection region for the type of t-test with level of significance α\alpha and sample size nn Left-tailed test, α=0.01,n=27\alpha=0.01, n=27 A. t0=−1.315;t<−1.315t_{0}=-1.315 ; t<-1.315 B. t0=2.479;t>2.479t_{0}=2.479 ; t>2.479 c. t0=−2.473;t<−2.473t_{0}=-2.473 ; t<-2.473 D. t0=−2.479;t<−2.479t_{0}=-2.479 ; t<-2.479

Studdy Solution
The rejection region for a left-tailed test is where the test statistic tt is less than the critical value t0t_0.
Rejection region: t<−2.479t < -2.479
The correct answer is:
D. t0=−2.479; t<−2.479 \boxed{D. \, t_{0}=-2.479 ; \, t<-2.479}

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